Can recover liver damaged by alcohol?

Absolutely!: You have asked the right question and I am very happy for you -- it sounds as if a life is about to be turned around. The liver regenerates wonderfully, and only 1/3 of people who drink horribly for decades get cirrhosis. Further, even a cirrhotic who sobers up will have some of the damage regress. And a liver that's fried on a beery wild weekend will heal without damage. Be glad & good luck.

Depends, often yes: Alcohol harms the liver in stages, and until the very end stages (cirrhosis = scarring), the damage is reversible if one stops drinking. First is alcoholic hepatitis, which can show just on lab tests, or can cause right upper abdominal pain, nausea/vomiting, bloating, jaundice (yellow skin), bruising/bleeding, and hormone changes. Quitting drinking at any stage will improve health & decrease risks.